WARNING IMPORTANT - Gas Heater Store

1 FOR YOUR SAFETYThe use and storage of gasoline or other flammable vapors and liquids in open containers in the vicinity of this appliance is installation and service of these units MUST be performed by a qualified installation and service agency. WARNINGIf the information in this manual is not followed exactly, a fire or explosion may result, causing property damage, personal injury or death. RESIDENTIAL OWNER S mANuALgas-fired unit heatersmodels HD, HDB, HDS, and models approved for use in California by the CEC, and in Massachusetts. Unit Heater is certified for residential and commercial applications.

2 CAUTIONTo prevent premature heat exchanger failure do not locate ANY gas-fired units in areas where chlorinated, halogenated or acid vapors are present in the atmosphere. WARNINGI mproper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death, and could cause exposure to substances which have been determined by various state agencies to cause cancer, birth defects or other reproductive MANUAL IS THE PROPERTY OF THE OWNER. PLEASE BE SURE TO LEAVE IT WITH THE OWNER WHEN YOU LEAVE THE JOB. August, 2014 FOR YOUR SAFETYWhAT TO DO If yOu SmELL gAS: Open windows.

3 Do not try to light any appliance. Do not touch any electrical switch; do not use any phone in your building. Immediately call your gas supplier from a neighbor s phone. follow the gas supplier s instructions. If you cannot reach your gas supplier, call your fire on Your New PurchaseThank you for choosing Modine s low profile, Hot DawgTM unit Heater . We are convinced that you will be pleased with the design and quality of this Heater . You should receive years of trouble-free heat and comfort from the Hot Dawg with proper maintenance and the Heater Area Clear:1. Do not use the area around the Heater for Never obstruct the air openings into the Never place any items (paper, tools, etc.)

4 On top of the Heater . There are air openings on the top of the Do not place any combustible materials (paper, wood, cloth, etc.) next to the Heater or Air:1. Make certain that the fan guard in the rear of the Heater is For optimum performance, do not completely close the deflector blades. If needed, adjust the deflector blades slightly to direct the air towards the When initially started in a cold environment, the air coming out of the Heater may not feel warm. As the temperature in the environment increases, and as the heat exchanger tubes become hot, the air temperature coming out of the Heater will Air: (Power Vented Unit Only)This gas-fired unit Heater must be supplied with adequate combustion air.

5 Today s current construction techniques, which result in tighter homes and buildings (or significantly less air infiltration from the outside), makes it more IMPORTANT than ever that heating equipment have adequate combustion installer of this unit Heater has determined what it takes to be assured that your unit Heater has adequate combustion air. If this Heater has been installed in a confined space, two permanent openings (one near the top of the enclosure and one near the bottom) have been provided. These two openings must freely communicate with areas having adequate combustion infiltration from the outside.

6 Do not block or alter in any way the combustion air is very IMPORTANT to abide by the following:1. Do not block or alter in any way the combustion air Refrain from creating excessive amounts of dust near the Heater ( saw dust from sanding, cutting, etc.)3. Do not use or Store corrosive chemicals in the area near the Heater (these include pool chlorine, fertilizers, etc.)4. Refrain from prolonged use of ventilation fans or hoods as this may deplete the amount of combustion up - generalBefore start up, it is IMPORTANT to read the For Your Safety Read Before Operating message below.

7 This message also appears on the access cover of your hot Dawg gas-fired unit Heater . The message follows:fOR yOuR SAfETy READ BEfORE OPERATINgWARNINg: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or This appliance does not have a pilot flame. It is equipped with an ignition device which automatically lights the BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the TO DO If yOu SmELL gAS: Do not try to light any appliance.

8 Do not touch any electric switch; do not use any phone in your building Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier s instructions. If you cannot reach your gas supplier, call the fire Use your hand to move the gas control switch. Never use tools. If the switch will not move, don t try to repair it; call a qualified technician. Force or attempted repair may result in a fire or Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and replace any part of the control system and any gas control which has been under control operating sequence of your gas-fired unit Heater is as follows: Upon a call for heat from the thermostat, power is supplied to the power exhaust motor.

9 The unit will go through a pre-purge period. The igniter provides for the establishment of the flame while the main valve in the control opens to allow gas flow to the burners. If the fan motor has not already started, it will start shortly. If a burner flame is not sensed for any reason, the main valve will close and there will be a short purge period before ignition is tried again. If the flame is not sensed after four tries there will be at least a one hour wait before ignition is tried Down - general:TO TuRN Off gAS TO APPLIANCE1. Set thermostat to lowest Turn manual shut-off valve located outside of the unit to the closed position (see Figure 1).

10 3. Turn off all electric power to the appliance if service is to be performed. 4. Remove access Turn the gas valve switch to the OFF Replace the access AND gENERAL COmmENTSgENERAL OPERATIONAL INfORmATION2 IMPORTANTAll installation and service of these units MUST be performed by a qualified installation and service installation and service of these units MUST be performed by a qualified installation and service are a few troubleshooting items that you may perform. They are listed below. All other troubleshooting MUST BE PERFORMED BY A QUALIFIED INSTALLATION AND SERVICE the Heater does not light:1.